Network issue

Hi all,

I am facing a network issue that confused me and that I am unable to diagnostic myself and consequently unable to solve. Here is my situation :- One desktop computer dual-booting Arch/windows (need some programs unwinable for my work, I promise I am forced to )- One server computer running ArchThese two computers accessing internet using wifi.

I recently change living place and since I am unable to use internet on my desktop computer with Arch and I can't figure out why ! Some details :- I can access internet from Windows so it is unlikely a material issue- I can access internet from my server computer which use the same network profile than the desktop one- When I use the command wifi-menu on the server computer, I can see my wifi-name. When I do it on the desktop computer, I can't see my wifi with Arch (I can see it throught

Windows)- I can successfully netcfg -r myNetworkProfile on the server computer. When I try on my desktop computer, I have a message error saying wpa_supplicant is already running and

indicating that I have to remove a .pid file. After doing it, I get a wpa authentification fail error. As I have said before, the networkProfile file are strictly identical.- On the server computer, I can successfully ping 127.0.0.1 and 192.168.0.11 (itself on my network). On the desktop computer, I can successfully ping 127.0.0.1 but not

Re: Network issue

My apologies, I should have mention that I have already did it. I have installed my network by using the wiki and everything was working well before changing my living place.

Just did it another time to check it out :- iwconfig output is correct (similar to wiki example)- wlan0 set up correctly with ip link (no error output, no firmware required)- wireless_tools, wpa_supplicant, wpa_actiond, dialog packages are installed (check with pacman -Ssq)- wifi-menu wlan0 doesn't list my wifi (but only on my desktop computer as I have already mention it)- net-auto-wireless service is running (check with systemctl list-units)- /etc/conf.d/nercfg configuration is the same that the wiki example one

Re: Network issue

"iwlist wlan0 scan" and wifi-menu (both run in root) have same outputs and my wifi network is still not listed in...

I have made some new experiments to find out the problem (that's why it takes me some days to answer). I run a live-cd arch image and run "iw dev wlan0 scan" on it (same command as yours, find it in the wiki page you mentionned). I found my network ssid and was able to connect to it.

At this stage, I have definitely assumed that is not an hardware issue and must probably be a misconfiguration one so I decide to reinstall my network related packages to try a full manual installation (following the wiki link you have mentionned).

Using the live-cd, I have mounted my system and chrooted into it. I have disable all automatically launched services related to network, delete current network profiles and conserved only packages mentionned in the wiki page for WPA manual installation.

Then, I quit the chrooted environment to run my system and was still unable to connect to my wifi... I redo wiki steps and get the following results :- "iw dev wlan0 scan" command doesn't list my wifi ssid- Manual association with wpa_supplican't seems to failed (infinite process, no output)

I am still confused about this problem and can't understand why it works on chrooted system and not the normal one.

Re: Network issue

First saying they had the same output without your network is not really what I was looking for. Do they have output at all? Does wifi-menu or iwlist produce a list of wireless networks but yours is just not listed, or do they not produce a list of wireless networks? Do they give any error messages?

It sounds like you have netcfg or networkmanager services enabled to start at boot and these are causing problems. Use systemctl or explore /etc/systemd/* to see what services are being started at boot and disable any networking related service (for the time being).

Re: Network issue

First saying they had the same output without your network is not really what I was looking for. Do they have output at all? Does wifi-menu or iwlist produce a list of wireless networks but yours is just not listed, or do they not produce a list of wireless networks? Do they give any error messages?

They bot have "standard" output which list some networks (about ten) and mine is not listed in. The output is errorless but some network have no ssid. Nevertheless, those networks are not mine because I have tried to connect to them (+ mine is listed on a chrooted environment).

It sounds like you have netcfg or networkmanager services enabled to start at boot and these are causing problems. Use systemctl or explore /etc/systemd/* to see what services are being started at boot and disable any networking related service (for the time being).

This sound good according to the new symptoms but I have done few check and it appears that's not the case. Here are some command line outputs in case I missed something myself :

I have redone the wiki step on the chroot environment and it definitively works. I can't understand why "iw dev wlan0 scan" doesn't give the same result on chrooted system and normal one. It should be the same even if I have something misconfigurated...